i'am still unable to resolve the IM SSL issue, we have the cert8.db etc... that we use for the App server, LDAP, messaging and calendar, and we would like to use the same certificate database for the IM, this what i have in the iim.conf

Which version of IM are you running ?
If it is 7.3+, support for NSS based certificates no longer exists,SSL support is now through jks.
However if you have certificate in NSS database you can migrate it to jks using the cli utility "migratecert" provided by IM.

Please see these sections for more details - http://wikis.sun.com/display/CommSuite6U1/Communications+Suite+6+Update+1+What%27s+New#CommunicationsSuite6Update1What%27sNew-What%27sNewinInstantMessaging7.3
http://wikis.sun.com/display/CommSuite/Using+the+migratecert+Command